40 mm anti-aircraft shell? - FIREARMS - U.S. Militaria Forum
![](https://www.usmilitariaforum.com/forums/uploads/monthly_2021_01/2061509955_shell4.jpg.e8ac0c7a2ebab5b18e760f7a9cb8d926.jpg)
We are cleaning out my mother-in-law's condominium and found this item in a trunk in the garage. I did a little snooping on the Internet and it looks like it's a 40 mm antiaircraft shell casing. The stamp on the head of the shell near the primer is 1943. The shell was in a round tube and the cap
![](https://www.usmilitariaforum.com/forums/uploads/monthly_01_2010/post-1414-1264490595.jpg)
40mm 'Bofors' AA gun sight - MISSILES & ARTILLERY (FIXED, TOWED, AND SELF-PROPELLED) - U.S. Militaria Forum
![](https://www.usmilitariaforum.com/forums/uploads/monthly_05_2014/post-10825-0-39456000-1401373396.jpg)
USN 40mm Saluting shell - FIREARMS - U.S. Militaria Forum
![](https://www.warrelics.eu/forum/attachments/ordnance-ammo/1499214d1619343773-40mm-shell-case-20210425_095624.jpg)
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
![](https://i.ytimg.com/vi/PWCSMYi5DOg/maxresdefault.jpg)
WWII USN 40mm Bofors Shell
![](https://i.imgur.com/iQjkB0p.png)
WW2 German SPAAGs Archives - Tank Encyclopedia
![](https://www.usmilitariaforum.com/forums/uploads/monthly_2023_06/2.jpg.01bb459e581d015d0241b3a4e249db2a.jpg)
US Military Rifle Grenade Display - FIREARMS - U.S. Militaria Forum
![](https://www.usmilitariaforum.com/forums/uploads/monthly_2023_04/IMG_4777.jpg.9ec22c3787baadd6943eddf3efecefed.jpg)
40mm shell and 37mm? Anybody know what these are? - ORDNANCE - U.S. Militaria Forum
![](https://www.ima-usa.com/cdn/shop/products/ONJR22OAS041__06_1024x1024.jpg?v=1666365325)
Original German WWII Inert 4cm Flak 28 Bofors Anti-Aircraft Round - Da – International Military Antiques
![](https://www.usmilitariaforum.com/forums/uploads/monthly_2021_01/9BBE08C2-74E4-4C61-8E10-3C6EC8E9A48A.jpeg.f731c54cd62bf7b48d7dba27aa6619f6.jpeg)
40 mm anti-aircraft shell? - FIREARMS - U.S. Militaria Forum